Lyric discussion by FedeDixi 

Cover art for Ruiner lyrics by Nine Inch Nails

This song sees the Ruiner from Trent's (protagonist) perspective. The lines sung fast (almost like rap), is what Trent thinks about the Ruiner. The lines of "how to get so..." don't represent anything sexual or religious: they represent how he doesn't understand how the Ruiner grew so strong inside of him. The final lines are sung by the Ruiner: "you didn't hurt me, nothing can stop me now" is the Ruiner saying that no matter how much Trent tries to erase him, he cannot hurt him and nothing can stop him to fuck Trent up.

My Interpretation